2 * utils_crypt - cipher utilities for cryptsetup
4 * Copyright (C) 2004-2007, Clemens Fruhwirth <clemens@endorphin.org>
5 * Copyright (C) 2009-2012, Red Hat, Inc. All rights reserved.
6 * Copyright (C) 2009-2012, Milan Broz
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * as published by the Free Software Foundation; either version 2
11 * of the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
23 #ifndef _UTILS_CRYPT_H
24 #define _UTILS_CRYPT_H
29 #define MAX_CIPHER_LEN 32
30 #define MAX_CIPHER_LEN_STR "32"
31 #define MAX_KEYFILES 32
35 int crypt_parse_name_and_mode(const char *s, char *cipher,
36 int *key_nums, char *cipher_mode);
38 int crypt_get_key(const char *prompt,
39 char **key, size_t *key_size,
40 size_t keyfile_offset, size_t keyfile_size_max,
42 int timeout, int verify,
43 struct crypt_device *cd);
45 void *crypt_safe_alloc(size_t size);
46 void crypt_safe_free(void *data);
47 void *crypt_safe_realloc(void *data, size_t size);
49 ssize_t crypt_hex_to_bytes(const char *hex, char **result, int safe_alloc);
50 int crypt_string_to_size(struct crypt_device *cd, const char *s, uint64_t *size);
52 #endif /* _UTILS_CRYPT_H */